The DHCP Server provides dynamic IP addresses to endpoints on the network and prevents IP address conflicts. It can also provide additional network related configuration such as the default gateway, DNS servers, and other options that endpoints can request.
Only one DHCP server can be enabled on a network at a time.
DHCP Server Options
You can configure blocks of IP addresses, the default gateway, DNS servers, and other parameters that can be served to requesting devices. The following table lists the options supported by the DHCP Server.
DHCP Server Options
Option | Description |
---|---|
1 | Subnet Mask—LAN Netmask of the EdgeMarc, Network page |
2 | Time Offset |
3 | Router—LAN IP of the EdgeMarc, Network page |
6 | DNS Server—DNS IP, Network page |
42 | NTP Servers |
51 | IP address lease time—Lease duration in seconds, DHCP page |
53 | DHCP Message Type—Set by DHCP server |
54 | Server Identifier—LAN IP of the EdgeMarc |
66 | Server-Name (Polycom uses this for FTP server name) |
67 | Boot file name |
129 | Call Server IP Address—VLAN ID Discovery |
150 | Phone Image TFTP Server IP—LAN IP of the EdgeMarc, Network Page |
159 | Specifies a text string in the form of a FQDN for Polycom phones. It can be used to point the Polycom phones to the domain name of a TFTP server using HTTP. |
160 | Specifies a text string in the form of a FQDN for Polycom phones. It can be used to point the Polycom phones to the domain name of a TFTP server using HTTPS. |
The DHCP IP Address Ranges table (refer to the DHCP IPv4 Address Range Settings screen capture) shows the dynamic addresses to use for the LAN devices.
Configuring DHCP Server on the EdgeMarc includes enabling the server and configuring the DHCP IP Address range to be used by LAN devices. To configure the DHCP server, refer to the following sections: